# N271: 1917 Polson Thor POLSON SPECIAL

- Status: Valid registration
- Airframe: [Polson Thor POLSON SPECIAL](https://openairdocs.org/model/polson-thor-polson-special) (registry code 056199S, 1 seats)
- Engine: [Curtiss OX-5](https://openairdocs.org/engine/curtiss-ox-5) (registry code 18100)
- Serial number: 102
- Year built: 1917
- Type: Fixed wing single engine
- Engine type: Reciprocating
- Airworthiness: Experimental, exhibition
- Airworthiness date: November 13, 2007
- Certificate issued: January 7, 2009
- Expires: May 31, 2029
- Mode S code: A2AA32
- Registered owner: [Jenkins George Merrit](https://openairdocs.org/faa-owner/JENKINS%20GEORGE%20MERRIT)
- Location: [Wayne, PA](https://openairdocs.org/faa-place/PA/Wayne)
- Owner type: Individual
- Owner's area on the map: 40.0621° N, 75.4004° W: Placed by OpenAirDocs at the center of ZIP code 19087, within about 2 miles (OpenAirDocs). The owner's mailing address, not where the aircraft is based
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=271
- Page: https://openairdocs.org/aircraft/N271

From the FAA registry file of October 22, 2026. ADs below are matched by the registry's airframe and engine model codes. They may apply; each AD's applicability can narrow it by serial number, part number or installed equipment. This is not a compliance determination.

## ADs that may apply (OpenAirDocs): 0 in force

### Matched by airframe (Polson Thor POLSON SPECIAL)

None in force.

### Matched by engine (Curtiss OX-5)

None in force.

## Information bulletins (advisory)

None matched.

## NTSB investigations

None matched to N271.

## FAA accident and incident reports

None matched to N271.

## Reports on N271 not matched to an aircraft (2)

They name N271, but no registry record covers the date, the aircraft registered then was built later, or the report describes another aircraft.

- [Incident 19850826067109I](https://openairdocs.org/incident/19850826067109I), Aug 26, 1985: Bolkms BK117A1 (N271), Norwood, MA. Entered ata without communication with tower. Pilot on wrong frequency, thought tower was closed.
- [Incident 19800907082059I](https://openairdocs.org/incident/19800907082059I), Sep 7, 1980: Boeing 727 (N271), Chicago, IL. Pilot aborted takeoff due to suspected dragging brake. Checked ok, flight departed.

## Service difficulty reports

None filed for this aircraft. Matched to this aircraft by N-number and event date, checked against the reported serial number, make and model.

## Service difficulty reports on N271 not matched to an aircraft (25)

They name N271, but no registry record covers the date, the aircraft registered then was built later, or the report describes another aircraft.

- [SDR WRLA2006038](https://openairdocs.org/sdr/WRLA2006038), Aug 10, 2006: SWITCH. INOPERATIVE. RCH964/10 EDDR/OKBK SH0RTLY AFTER ARRIVAL NOTICED SMOKE SMELL IN FORWARD GALLEY. PULLED C/B'S AND DEACTIVATED NR 3 OVEN. FOUND NR 3 OVEN SW VERY HOT, WITH AIRCR
- [SDR WRLA2006008](https://openairdocs.org/sdr/WRLA2006008), Mar 1, 2006: FIRE LOOP. DEFECTIVE. APPROXIMATELY ONE HOUR AFTER TAKEOFF FROM KWI, ENGINE-2 FIRE DETECTOR FAIL ALERT INTERMITTENTLY APPEARED ON THE SD. (NOTE SYSTEM 2-B FIRE DETECTION SYSTEM PREVI
- [SDR WRLA2006007](https://openairdocs.org/sdr/WRLA2006007), Mar 1, 2006: ACTUATOR. MALFUNCTIONED. AFTER TAKEOFF FROM SNN AND DURING CLIMB, WHEN FLAPS/SLATS WERE RETRACTED, A DEFLECTED AILERON DISAGREE ALERT MESSAGE WAS DISPLAYED ON THE SD ALONG WITH LEFT OUT
- [SDR WRLA2006001](https://openairdocs.org/sdr/WRLA2006001), Jan 18, 2006: WIRE HARNESS. BURNED. READING LIGHTS WENT OUT AFTER TAKEOFF, PAX SAW SPARKS, BURNING SMELL. FOUND OVERHEAD DECODER AND ONE WIRING HARNESS BURNED. REMOVED DECODER AND HARNESS RUNNING 
- [SDR WRLA2005002](https://openairdocs.org/sdr/WRLA2005002), Jan 4, 2005: A/C PACK. SMOKE. DURING START OF TAXI, SMOKE FROM AIR CONDITIONING DUCT IN COCKPIT. NR 1 AIR CONDITIONING PACK WAS SELECTED OFF. NO FURTHER CREW ACTION TAKEN. AIRCRAFT RETURNED 
- [SDR WLDA2004121](https://openairdocs.org/sdr/WLDA2004121), Dec 26, 2004: SOLENOID. OVERHEATED. SMOKE IN COCKPIT WHEN TAXI FOR TAKEOFF, RETURNED TO BLOCKS. FOUND DOOR SOLENOID VERY HOT AND SMOKING. DISCONNECTED AND TAPED WIRES BACK. C/B PULLED AND TRANSFER
- [SDR WLDA2004108](https://openairdocs.org/sdr/WLDA2004108), Dec 6, 2004: WARNING LIGHT. ILLUMINATED. AED/ODN COCKPIT DOOR LOCK OVERHEATED INFLIGHT. CABIN CREW SMELLED SMOKE, PULLED DOOR C/B, HEAT AND SMELL DISSIPATED. ENTERED IN DMI M52DE0604-35 CAT-A PER MEL 5
- [SDR WLDA2004105](https://openairdocs.org/sdr/WLDA2004105), Nov 25, 2004: SENSOR. SEIZED. FRA/KWI ABORTED TAKEOFF AT 130 KTS DUE TO LEVEL II TIRE FAILURE AURAL & VISUAL ALERT. FOUND NR 2 TIRE PRESS SENSING UNIT SEIZED. DEACTIVATED SENSING UNIT AND EN
- [SDR WLDA2004120](https://openairdocs.org/sdr/WLDA2004120), Oct 14, 2004: SKIN. CRACKED. DURING 2C+12A CHECK, FOUND LT WING NR 2 SLAT OUTBOARD SIDE ANGLE/UPPER SKIN PANEL CRACK AT XIS 360. REPAIRED LT WING NR 2 SLAT OUTBOARD SIDE ANGLE/UPPER SKIN PA
- [SDR WLDA2004119](https://openairdocs.org/sdr/WLDA2004119), Oct 14, 2004: SKIN PANEL. NICKED. DURING C2+12A CHECK, FOUND NICK ON RT WING INBOARD FLAP ON STA XIFH 152WITH D=0.039" AND L=3/8". REPAIRED NICK ON RT WING INBOARD FLAP UPPER SKIN AT XIFH 152 PE
- [SDR WLDA2004118](https://openairdocs.org/sdr/WLDA2004118), Oct 14, 2004: SUPPORT FITTING. CORRODED. DURING 2C+12A CHECK, FOUND CORROSION IN CENTER WING W/W RT/LT SUPPORT FITTING AT STA Y=1481 X=-31.5 AND X=31.5. REPAIRED CORROSION ON LT/RT FWD TRUNNION FITTING
- [SDR WLDA2004117](https://openairdocs.org/sdr/WLDA2004117), Oct 14, 2004: WEB. CRACKED. DURING 2C+12A CHECK, FOUND CRACK AT CENTER CARGO COMPARTMENT STA 1841 L-50 RT WEB. REPAIRED CRACK ON FUSELAGE FRAME WEB STA 1841 L-50 RT PER EGAT EI W2004A53B-5
- [SDR WLDA2004116](https://openairdocs.org/sdr/WLDA2004116), Oct 14, 2004: SEAT TRACK. CORRODED. DURING 2C+12A CHECK, FOUND CABIN SEAT TRACK CORRODED AT STA Y=959 X=-8.5. REPAIRED DAMAGED SEAT TRACK PER MD-11 SRM VOL.I 53-70-00, CONDITION CHECK SATISFACTORY
- [SDR WLDA2004115](https://openairdocs.org/sdr/WLDA2004115), Oct 14, 2004: SKIN PANEL. SCRATCHED. ITEM: DURING 2C+12A CHECK, FOUND 3 EA SCRATCH ON EXTERNAL SKIN ON LT HST L/E BETWEEN XFS 275.410 AND XFS 263.762. BLENDED REPAIR PER EGAT EI W2004A 55B-575 REV 
- [SDR WLDA2004114](https://openairdocs.org/sdr/WLDA2004114), Oct 14, 2004: SKIN. DENTED. DURING 2C+12A CHECK, FOUND SHARP DENT ON LT WING NR 3 SLAT UPPER SKIN AND INNER RIB AT STA XOS 414. REPAIRED DAMAGE AREA PER EGAT EI W2004A 57B-581 REV 00(MD-11
- [SDR WLDA2004113](https://openairdocs.org/sdr/WLDA2004113), Oct 14, 2004: SKIN PANEL. DENTED. DURING 2C+12A CHECK, FOUND 2EA SHARP DENT ON LT WING NR 1 SLAT UPPER SKIN PANEL LOCATED AT STA XIS 240. REPAIRED DAMAGE AREA PER EGAT EI W2004A 57B-564 REV 00(M
- [SDR WLDA2004112](https://openairdocs.org/sdr/WLDA2004112), Oct 14, 2004: SKIN PANEL. PUNCTURED. DURING 2C+12A CHECK, FOUND LT WING NR 1 SLAT L/E AREA HOLE DAMAGE AT STA XIS 186. REPAIRED DAMAGE AREA PER EGAT EI W2004A 57B-560 REV 00 (MD-11 SRM VOL.I 57-10-
- [SDR WLDA2004111](https://openairdocs.org/sdr/WLDA2004111), Oct 14, 2004: STRINGER. CRACKED. DURING 2C+12A CHECK, FOUND RT WING FIXED L/E SKIN CRACK ABOUT 10" AND STRINGER DOUBLER CRACK AT STA XOS 906. REPAIRED CRACK ON RT WING FIXED L/E SKIN PANEL AND 
- [SDR WLDA200490](https://openairdocs.org/sdr/WLDA200490), Aug 25, 2004: ENGINE. LEAKING. AIR TURNBACK DUE TO LOSS OF NR 2 ENGINE OIL QUANTITY. INDICATION BOXED "0", PERFORMED CHECKLIST NOTED OIL PRESSURE DECREASING; ENGINE WAS SHUTDOWN PERFORMED. RE
- [SDR WLDA200432](https://openairdocs.org/sdr/WLDA200432), Jun 26, 2004: CHARGER. DEFECTIVE. FRA/NKT AIR TURNBACK DUE TO LEVEL I BATTERY CHARGING ALERT ILLUMINATED DURING NORMAL CRUISE FLIGHT. ELECTRIC SCHEMATIC SHOWED 40V. BATTERY APPEARED TO BE CONTIN
- [SDR CHQ000130](https://openairdocs.org/sdr/CHQ000130), Mar 6, 2002: COMPASS. OUT OF TOLERANCE. DURING CLIMBOUT RECEIVED AN AMBER HEADING MESSAGE ON BOTH PFD'S. PERFORMED COMPASS SWING AND FLUX DETECTOR TEST, OPS CHECK GOOD.
- [SDR CHQ000127](https://openairdocs.org/sdr/CHQ000127), Mar 2, 2002: SMOKE WARNING. FALSE ACTIVATION. BAGGAGE SMOKE WARNING AFTER T/O. CREW BLEW FIRE EXTINGUISHERS, NO EVIDENCE OF FIRE. COULD NOT DUPLICATE SMOKE WARNING AND DETECTION SYSTEM, OPS CHECK GOOD. FERR
- [SDR CHQ000116](https://openairdocs.org/sdr/CHQ000116), Feb 11, 2002: WARNING SYSTEM. ACTIVATED. OUTBOARD BRAKE FAIL MESSAGE ON EICAS.
- [SDR CHQ00038](https://openairdocs.org/sdr/CHQ00038), Nov 7, 2001: INDICATOR. INOPERATIVE. NR 1 FUEL INDICATION INOP.
- [SDR 20000710SH013](https://openairdocs.org/sdr/20000710SH013), Nov 19, 1999: FRAME. CRACKED. FRAME WAS FOUND CRACKED. REPAIRED PER AMERICAN EUROCOPTER REPAIR PROCEDURE. (X)

## STCs that may be installed (OpenAirDocs)

None matched to this aircraft's models.

## Earlier aircraft with N271

The FAA can reassign an N-number once a registration is cancelled. These aircraft carried N271 before.

- [Cancelled 1978-01-09](https://openairdocs.org/deregistered/N271-1978-01-09): Beech 65-B80, S/N LD-288, built 1966. Exported to Fiji. Owner: [Terry Combs & Associates Inc](https://openairdocs.org/faa-owner/TERRY%20COMBS%20%26%20ASSOCIATES%20INC), [Denver, CO](https://openairdocs.org/faa-place/CO/Denver)
- [Cancelled 1947-06-30](https://openairdocs.org/deregistered/N271-1947-06-30): North American SNJ-4, S/N 1135, built 1942. Owner: [Civil Aeronautics Administration](https://openairdocs.org/faa-owner/CIVIL%20AERONAUTICS%20ADMINISTRATION), [Washington, DC](https://openairdocs.org/faa-place/DC/Washington)

## Related

- Other Polson Thor POLSON SPECIAL aircraft: https://openairdocs.org/model/polson-thor-polson-special/aircraft.md
- The Curtiss OX-5 engine: https://openairdocs.org/engine/curtiss-ox-5.md

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